Centrifugal machine.



PATENTB'D JAN. 6, 19os.

J. J. BERRIGAN;

GENTRIFUGAL MACHINE.'

APPLIOATIOH FILED MAY '7,'1902l 2 SHBETS-SHBET-Z.

NO MODEL.

INVENTUR j .Zahn .Z Barrigan ggWITNISSES BY@ V v WM i ATTORNEY NrrnSTATES JOHN JOSEPH BERRIGAN, OF RANGE, NEVV JERSEY.

CENTRIFUGAL MACHINE.

SPECIFICATION' forming part of Letters Patent N0. 717,804, dated January6, 1903. Application iiled May 7, 1902. Serial No. 106,284. (No model.)

To all whom it may concern:

Be it known that I, JonN JOSEPH Bunni- GAN, of Orange, Essex, county,New Jersey, have invented a new and useful Improvement in CentrifugalMachines, of which the following is a specification.

My invention is an improvement uponthe type of machine for separatingsolids and liquids which is set forth in United States Letters PatentNo. 677,926, granted to me July 9, 1901.

My invention consists, first, in the novel means for preventing theaccess of solid constituent to the openings in the wall of thereceptacle for the material to be separated, whereby liquidcommunication is established between saidreeeptacle and the outer drum;second, in the construction whereby the liquid constituent is deliveredthrough an outlet in the cover of said receptacle, while the solidconstituent escapes through an opening in the wall thereof, and, third,in the combination with the separating mechanism of a hood havingcompartments respectively receiving the outcoming solid and liquid.V l

In the accompanying drawings, Figure l is a vertical section of themachine on the line a: of Fig. 4, the lower portion of the standard 1and driving-pulleys forl the shafts 4 and 17 not being shown. Fig. 2 isan enlarged detail view in similar section, showing the ar rangement ofthe disks in the lower kvportion of the separating-chamber. Fig. 3 showsthe disks and their supporting-shafts separately, the disks being hereconical in shape; and Fig. 4 is a horizontal section on the line 'y y ofFig. l.

Similar characters of reference indicate like parts.

l is the standard, preferably integrally formed with the cup 2. Passingthrough the gland 3 in standard 1 is the hollow shaft 4, which at itsupper end carries the drum 5. Said shaft is supported in standard 1 andis rotated by belt and pulley, as indicated in Fig. 4. The upper edge ofdrum 5 is threaded to receive the anged cover 6, centrally disposed inwhich is a plug 7, through which passes the feed-pipe S. 0n the underside of the cover 6 is secured the plate 9, in which are channels 10,into which channels at their junction the feed, falling by gravitythrough pipe 8, is delivered. The outer ends of said channels areopen.Eccentrically disposed within the drum 5 is a separating vessel l1,having in its wall an aperture 12. Correspondingly placed in the wall ofdrum 5 is a smaller aperture 13. Between vessel 11 and drum 5 is a plate14, lhaving a tapered channel-15 connecting apertures l2 and 13.

Pivoted centrally in vessel 11 is a shaft l5, having at its lowerportion a pinion 16,which engages with a pinion 16* on the upper end ofshaft 17. Shaft-17 passes through the hollow shaft i4 and isindependently rotated by a belt and pulley. On shaft 17 are a pluralityof metal disks 1S 19 20, separated by collars or spacing-pieces 21 onsaid shaft. These disks may be more or less in number, as desired, Vandinstead of being flat, as shown in Figs. 1 and 2, they may be downwardlyinclined or conical. Between adjacent disks and atcircumferences l mayplace scrapingblades 22. Above the uppermost disk the shaft 17 is ofenlarged diameter and has secured to it radial arms 23, each armcarrying a scraping-blade 24. Beneath the lowest disk short inclinedsections of pipe 25,eXtend ing through the wall of vessel 11,l establishliquid-communication between vessel 11 and drum 5. Also communicatingwith the interior of vessel 11 and passing through the cover 6 is aliquid-delivery pipe 26. The pipe 27 in the bottom of the cup 2 is adrain for the escape ofanyliquid which may drip into said cup. Theoperation of the machine is as follows: By means of the rotating shaft 4the drum 5 is set in rapid revolution, carrying with it theeccentricallyplaced separating vessel 11. The combined solid and liquidmaterials to be separated are fed in through the pipe 8 to the channelsl0 and thence ejected by centrifugal force against the inner peripheryof the vessel ll. The liquid material, as fully explained in my patentaforesaid, then forms a ring within the drum 5 and vessel 11, the innercircumference of which is indicated by a dotted line at a, Fig. 4, andthe solid material is deposited on the inner'surface of vessel 11 overthe arc ZJ c d, Fig. 4. The liquid rises vertically upward and finallyescapes at the pipe 26. The solid material deposited as IOO aforesaid isengaged by the scraper-blades 24, which by reason of the rotation ofshaft 17 and of the intermediate gearing 16 16* are now moving aroundthe inner periphery of vessel 11. These blades convey the solid materialto the aperture 12 in vessel 11, whence by centrifugal force it isprojected through the passage 15 in plate 14 and the opening 13 in thedrum-wall, and so out of the machine.

The principal feature of my present invention is the arrangement of theplurality of disks 18 19 2O at the lower part of the vessel 11 and abovethe tube-sections 25, whereby said vessel communicates with drum 5.Their object is to prevent any solid material entering saidtube-sections and possibly thus impairing liquid communication betweenvessel anddrum. Itwillbeobviousthatanysolidmaterial falling on theupperdisk will at once by reason of the rotation of the latter beprojected radially outward to the periphery of the vessel. Also that asthe disk circumference is close to the inner periphery of the separatingvessel the solid material is unable to pass through this narrow space.In order to insure this last result, especially when the material isnely comminuted, it is preferable to use a plurality of disks, as hereshown, each actingin the manner described and each closing the spaceabove the tube-sections, so that in case any material should workthrough the annular crevice around disk 18 it would be thrown outwardlyby disk 19, and so on, while in order to reach the tube-sections itwould have to pass through a plurality of very narrow annular spaces. Inpractice I have found this shielding action ot' the disks very eicient.

In order to prevent the accumulation of any possible material betweenthe disks, I provide the intermediate scraping-blades 22, which collectsaid material and convey it to the opening 13 in vessel11 in the manneralready described.

The liquid from pipe 2G and the solid material from opening 13 may passinto any suitable receptacles placed to receive it. I show here a hoodwhich has two compartments, respectively for the,reception of the solidand liquid constituents. Said hood consists of two hollow conical frusta28 and 29, secured together, open above, and provided with a horizontalbase-plate 30, which rests on the upper edge of cup 2. In said plate areopenings 31. The space between the frusta 28 and 29 is closed and isprovided with a tube 32. Into this space the pipe 26 delivers theseparated liquid, which finally escapes at tube 32. The separated solidescaping at opening 13 in drum 5 strikes on the inclined inner surfaceof the lower frusta 28, and so is diverted downwardly and out at theopenings 31. A

I claim- 1. Inacentrifugal machine, a rotary drum,

a receptacle for combined solid and liquid constituents to be separateddisposed therein and having in its wall openings establishing liquidcommunication with said drum, and means disposed within said receptaclefor preventing access of solid material to said openings.

2. In a centrifugal machine, a rotary drum, a receptacle for combinedsolid and liquid constituents to be separated disposed therein andhaving in its wall openings establishing liquid communication with saiddrum, and a plate disposed within said receptacle and above saidopenings.

3. In a centrifugal machine, a rotary drum, a receptacle for combinedsolid and liquid constituents to be separated disposed therein andhaving in its wall openings establishing liquid communication with saiddrum, and a rotary plate disposed within said receptacle and above saidopenings.

4. In a centrifugal machine, a rotary drum, a receptacle for combinedsolid and liquid constituents to be separated disposed therein andhaving in its wall openings establishing liquid communication with saiddrum, and a plurality of plates disposed within said receptacle andabove said openings.

5. In a centrifugal machine, a rotary drum, a receptacle for combinedsolid and liquid constituents to be separated disposed therein andhaving in its wall openings establishing liquid communication with saiddrum, a plurality of plates disposed within said receptacle and abovesaid openings and scraper-blades between said guard-plates.

6. In a centrifugal machine, a drum rotary on a vertical axis, areceptacle for combined solid and liquid constituents to be separatedeccentrically disposed therein, tubular conduits in the wall of saidreceptacle establishing liquid communication with said drum, and a platedisposed in said receptacle and above said tubular conduits.

7. The combination in a centrifugal machine of the rotary drum 5,receptacle 11 eccentrically placed therein, tubular conduits 25 in thewall of said receptacle, rotary shaft 15 in said receptacle and aplurality of guardplates on said shaft and disposed above said tubularconduits.

8. In a centrifugal machine, a receptacle for the combined constituentsto be separated, a support therefor rotary on a vertical axiseccentrically placed within the perimeter of said receptacle, a rotaryshaft within said receptacle, means carried by'said shaft for conveyingthe solid constituent deposited centrifugally on a portion of theinterior of said receptacle from its place of deposit to anescape-opening in the wall of said receptacle and a cover for saidreceptacle provided with an escape-opening for the separated liquidconstituent.

9. The combination in a centrifugal ma- ICO IIO

chine of the drum 5 having escape-opening 13 naine to this specificationin the presence of and delivery-pipe 26, the support 2, and the twosubscribing witnesses.

hood hetvinor the concentric conicalV frusta 28 v and 29; thea saidfrusta, forming an annular JOHN JOSEPH BERRIGAN' 5 chamber receiving thedischarge of said'de- Witnesses:

livery-pipe. TH. WAWRINSKY, In testimony whereof I have signed my; NILSSTRANDELL.

